The number 3,425,100 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 49 50 60 70 75 84 98 100 105 140 147 150 175 196 210 233 245 294 300 350 420 466 490 525 588 699 700 735 932 980 1,050 1,165 1,225 1,398 1,470 1,631 2,100 2,330 2,450 2,796 2,940 3,262 3,495 3,675 4,660 4,893 4,900 5,825 6,524 6,990 7,350 8,155 9,786 11,417 11,650 13,980 14,700 16,310 17,475 19,572 22,834 23,300 24,465 32,620 34,251 34,950 40,775 45,668 48,930 57,085 68,502 69,900 81,550 97,860 114,170 122,325 137,004 163,100 171,255 228,340 244,650 285,425 342,510 489,300 570,850 685,020 856,275 1,141,700 1,712,550 and 3,425,100, with no remainder.
Since 3,425,100 cannot be divided by just 1 and 3,425,100, it is a composite number.